LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cpprfs_work()

lapack_int LAPACKE_cpprfs_work ( int  matrix_layout,
char  uplo,
lapack_int  n,
lapack_int  nrhs,
const lapack_complex_float ap,
const lapack_complex_float afp,
const lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float x,
lapack_int  ldx,
float *  ferr,
float *  berr,
lapack_complex_float work,
float *  rwork 
)

Definition at line 35 of file lapacke_cpprfs_work.c.

42 {
43  lapack_int info = 0;
44  if( matrix_layout == LAPACK_COL_MAJOR ) {
45  /* Call LAPACK function and adjust info */
46  LAPACK_cpprfs( &uplo, &n, &nrhs, ap, afp, b, &ldb, x, &ldx, ferr, berr,
47  work, rwork, &info );
48  if( info < 0 ) {
49  info = info - 1;
50  }
51  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52  lapack_int ldb_t = MAX(1,n);
53  lapack_int ldx_t = MAX(1,n);
54  lapack_complex_float* b_t = NULL;
55  lapack_complex_float* x_t = NULL;
56  lapack_complex_float* ap_t = NULL;
57  lapack_complex_float* afp_t = NULL;
58  /* Check leading dimension(s) */
59  if( ldb < nrhs ) {
60  info = -8;
61  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
62  return info;
63  }
64  if( ldx < nrhs ) {
65  info = -10;
66  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
67  return info;
68  }
69  /* Allocate memory for temporary array(s) */
70  b_t = (lapack_complex_float*)
72  ldb_t * MAX(1,nrhs) );
73  if( b_t == NULL ) {
75  goto exit_level_0;
76  }
77  x_t = (lapack_complex_float*)
79  ldx_t * MAX(1,nrhs) );
80  if( x_t == NULL ) {
82  goto exit_level_1;
83  }
84  ap_t = (lapack_complex_float*)
86  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
87  if( ap_t == NULL ) {
89  goto exit_level_2;
90  }
91  afp_t = (lapack_complex_float*)
93  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
94  if( afp_t == NULL ) {
96  goto exit_level_3;
97  }
98  /* Transpose input matrices */
99  LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
100  LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
101  LAPACKE_cpp_trans( matrix_layout, uplo, n, ap, ap_t );
102  LAPACKE_cpp_trans( matrix_layout, uplo, n, afp, afp_t );
103  /* Call LAPACK function and adjust info */
104  LAPACK_cpprfs( &uplo, &n, &nrhs, ap_t, afp_t, b_t, &ldb_t, x_t, &ldx_t,
105  ferr, berr, work, rwork, &info );
106  if( info < 0 ) {
107  info = info - 1;
108  }
109  /* Transpose output matrices */
110  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
111  /* Release memory and exit */
112  LAPACKE_free( afp_t );
113 exit_level_3:
114  LAPACKE_free( ap_t );
115 exit_level_2:
116  LAPACKE_free( x_t );
117 exit_level_1:
118  LAPACKE_free( b_t );
119 exit_level_0:
120  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
121  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
122  }
123  } else {
124  info = -1;
125  LAPACKE_xerbla( "LAPACKE_cpprfs_work", info );
126  }
127  return info;
128 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_cpprfs(...)
Definition: lapack.h:13795
#define lapack_complex_float
Definition: lapack.h:45
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_cpp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
#define MAX(x, y)
Definition: lapacke_utils.h:46
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
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